Researchers in Italy and Switzerland have found carbon nanotubes to be bio-compatible and that the can be attached to neurons to boost the natural signal-processing capabilities of those neurons.
“Our findings show that carbon nanotubes, which are as good an electrical signal conductor as the nerve cells of our brain, form intimate mechanical contacts with the cellular membranes, establishing a functional link to neuronal structures,” said University of Trieste (Italy) professor Laura Ballerini…

…the current results explaining the biocompatibility of carbon nanotubes hold the promise of enabling permanent repairs to be made to the faulty neurons, enhancing the performance of these networks and restoring their original functions…